Hello Tucker;
I do Performance Upgrades, and after I am done, I call Kevin At R & R Prop Shop.
His add is in back of Hot Boat Mag.
You tell him what you had before, How much more HP you have Now, ect...
And he's been right on the money dozens of time for me.
And if he is off on the selection, He has no problem exchanging it for one thats right on.
but that hasn't happen in the 20+ times I've used him.
Hope this helps.
regards Claude C & B Marine
R & R Prop (702)564-7502